Finding the Fourth Proportional to 990,477,534.68, 1,366,829,454.94 and 567,077,148.60
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Solution
The fourth proportional to 990,477,534.68, 1,366,829,454.94 and 567,077,148.60 is: 782,549,550.89
Step by Step Solution
- Step 1: Write the proportion equation
990,477,534.68 : 1,366,829,454.94 = 567,077,148.60 : x - Step 2: Convert to fraction form
990,477,534.68/1,366,829,454.94 = 567,077,148.60/x - Step 3: Cross multiply
990,477,534.68x = 1,366,829,454.94 × 567,077,148.60 - Step 4: Simplify right side
990,477,534.68x = 775,097,749,929,867,392 - Step 5: Solve for x
x = 775,097,749,929,867,392/990,477,534.68 - Step 6: Final answer
x = 782,549,550.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.